<p>A PARTICLE SEPARATOR CAPABLE OF ENHANCING THE COLLECTION EFFICIENCY WHILE MINIMIZING AN AUGMENTATION OF AUXILIARY MACHINERY POWER AND AN INCREASE OF THE DEVICE SIZE IS PROVIDED. A PARTICLE SEPARATOR (1A) THAT SEPARATES POWDER BEING TRANSPORTED ON AN AIR FLOW IN A STATE OF A SOLID-GAS TWO-PHASE FLOW FROM THE AIR FLOW AND COLLECTS THE POWDER IS PROVIDED WITH A DRIFT GENERATING PORTION (10) PROVIDED IN THE VICINITY OF A MAIN BODY CONNECTING PORTION OF A SOLID AND GAS SUPPLY TUBE (3) FOR LETTING THE SOLID-GAS TWO-PHASE FLOW STREAM INSIDE A SEPARATOR MAIN BODY (2) FROM THE CIRCUMFERENTIAL DIRECTION AND CONFIGURED TO CONCENTRATE A HIGH POWDER PARTICLE CONCENTRATION OF THE SOLID-GAS TWO-PHASE FLOW ON THE OUTER PERIPHERAL SIDE OF THE SEPARATOR MAIN BODY (2).</p>
